Home / 111,721.48-154,176.64-60,734.31

Finding the Fourth Proportional to 111,721.48, 154,176.64 and 60,734.31

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Solution

The fourth proportional to 111,721.48, 154,176.64 and 60,734.31 is: 83,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,721.48 : 154,176.64 = 60,734.31 : x
  2. Step 2: Convert to fraction form
    111,721.48/154,176.64 = 60,734.31/x
  3. Step 3: Cross multiply
    111,721.48x = 154,176.64 × 60,734.31
  4. Step 4: Simplify right side
    111,721.48x = 9,363,811,077.64
  5. Step 5: Solve for x
    x = 9,363,811,077.64/111,721.48
  6. Step 6: Final answer
    x = 83,813.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.